/*
* Copyright (c) LSE
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY LSE AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL LSE BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "multiboot.h"
#include "kstd.h"
#include "gdt.h"
#include "idt.h"
#include "stdio.h"
#include "pic.h"
#include "kfs.h"

static void print_done(void)
{
  char green[3] = {CONS_ESCAPE, CONS_COLOR, CONS_GREEN};
  char white[3] = {CONS_ESCAPE, CONS_COLOR, CONS_WHITE};

  write("[", 1);
  write(green, 3);
  printf("DONE");
  write(white, 3);
  write("]", 1);
}

void	k_main(unsigned long		magic,
	       multiboot_info_t*	info)
{
  (void) magic;
  (void) info;

  {
    char s[2] = {CONS_ESCAPE, CONS_CLEAR};

    write(s, 2);
    printf("Initializing K Kernel...\n\n");

    printf("Initializing GDT... ");
    gdt_init();
    print_done();

    printf("\nInitializing IDT... ");
    idt_init();
    print_done();

    printf("\nInitializing PIC... ");
    pic_initialization();
    print_done();

    printf("\nInitializing Kfs... ");
    // ATTENZIONE: Je charge ici l'adresse du premier module
    // mais il est possible que ce soi en realite le DERNIER
    // module qui soi le superblock
    module_t* last_mod = (*info).mods_addr;
    last_mod = last_mod + ((*info).mods_count - 1) * sizeof (module_t);
    kfs_init((*last_mod).mod_start);
    print_done();
    printf("\n");

    t_uint32 stack_begin;
    t_uint32 jmp_addr;

    jmp_addr = elf_load("rom_prog", &stack_begin);

    printf("\nK Kernel was successfully initialized.\n");
    while(1);
  }

  return;
}
